Technical Reference Note (APC08)
Centauri (APC08) Non-Isolated DC/DC Power Module
The Centauri (APC08) DC-DC Power Module is a high efficiency non-isolated buck converter designed for use in a wide
variety of applications. It works from a wide input voltage range of 1.8V to 6V or 5V to 13V and offers an extensive array of
output voltages starting from 0.9V to 3.6V (up to 6V in some flavors). Through careful layout and component selection it
achieves the highest efficiency/load in the smallest footprint available in the market today. It is ideal for Point of Load
applications and provides the most flexibility for the ever-changing DSP and ASIC power requirements.
Electrical Parameters
Input
Input range
Efficiency
1.8-6.0VDC and 5.0-13.0VDC
3.3V @ 93% Typ
Control
Enable TTL compatible (Positive Logic)
Industry Standard
0.53 X 1.3 X 0.29H SMT Package
Output
Regulation
(Line, Load, Temp)
Ripple and noise
Output voltage
adjust range
Transient Response
<3%
75mV - (≥2.5V Output)
50mV - (<2.5V Output)
0.9V to 3.6V (J Version)
5% max deviation with
50% to 75% full load
500 µS (max) recovery
Special Features
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Point of load (POL) applications
High efficiency, 3.3V@93% Typ
-40°C to +85°C Ambient Operating
Temperature
Open Frame SMT
Positive enable function
Low output ripple and noise
Regulation to zero load
Programmable Output from 0.9V to 3.6V
(External Trim Resistor)
Fixed frequency switching (400 KHz)
Power Good Signal (Optional)
Active Current share (Optional)
Environmental Specifications
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Operating temperature: -40°C to +85°C
Storage temperature: -40°C to +125°C
MTBF: >3.3 million hours
Safety
Designed to meet:
UL, cUL
60950 Recognized
TUV
EN60950 Licensed
MODEL: APC08 SERIES
OCTOBER 4, 2004 - REVISION 03
SHEET 1 OF 23
ASTEC [ Astec America, Inc ]
